| Why carry out this study? |
| There is a call for immediate action against global warming in health care. |
| Pressurized metered-dose inhalers (pMDIs), widely used in the treatment of patients with asthma or chronic obstructive pulmonary disease (COPD), have a 20-40-fold higher carbon footprint compared to propellant-free dry powder inhalers (DPIs). |
| This post hoc analysis assessed the effect of switching from a pressurized metered-dose inhaler (pMDI) to the budesonide–formoterol Easyhaler DPI on disease control and the carbon footprint of the treatment. |
| What was learned from the study? |
| The results show improvements in clinical outcome parameters among patients with asthma or COPD when they switched from pMDI to DPI. |
| The amount of estimated kg CO2e emissions per year for maintenance treatment was 97.0% lower for the DPI than for pMDI. |
| The results strengthen the evidence on decreased environmental impact of inhaler treatment with DPIs without compromising the disease control. |
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